How to modify the http and https ports for ElastiCenter UI?

[ CONFIGURATION ]
September 18th, 2016

Introduction

ElastiCenter UI is enabled using apache-tomcat and it is configured by default to listen on http(80), which is redirected to https(443).

You can change these default settings using the below steps.

ElastiCenter UI ports configuration is in the file: /usr/local/apache-tomcat-6.0.33/conf/server.xml

Configuration Steps

STEP 1: ssh into ElastiCenter Take a backup of the /usr/local/apache-tomcat-6.0.33/conf/server.xml before making any changes.

STEP 2:
Edit the http(80) and https(443) in the server.xml to the desired port numbers. Also, change the redirect port (443) to the new https port.

You will required to change the following lines:

    <Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="443" />
  
  ...<snipped>
  
        <Connector executor="tomcatThreadPool-internal" address="127.0.0.1"
               port="7080" protocol="org.apache.coyote.http11.Http11NioProtocol"
               connectionTimeout="20000" disableUploadTimeout="true"
               acceptCount="150" enableLookups="false" maxThreads="150"
               maxHttpHeaderSize="8192" redirectPort="443" />  

...<snipped>

    <Connector port="443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS"
               keystoreType="JKS"
               keystoreFile="conf/cloud.keystore"
               keystorePass="vmops.com"
               compression="on"
           compressionMinSize="1024"
           noCompressionUserAgents="gozilla, traviata"
           compressableMimeType="text/html,text/xml,text/json,text/javascript,text/css,text/plain,
           application/javascript,application/xml,application/xml+xhtm"
           sslEnabledProtocols="TLSv1,TLSv1.1,TLSv1.2"
               ciphers="TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
                        TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                        TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                        TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                        TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                        TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                        SSL_RSA_WITH_3DES_EDE_CBC_SHA"
               />

...<snipped>

    <Connector port="20400" protocol="AJP/1.3" redirectPort="443" />

STEP 3: Restart ElastiCenter UI

   root@EC:~ # pgrep java
   2188
   root@EC:~ # kill -9 2188
   root@EC:~ # /usr/local/apache-tomcat-6.0.33/bin/startup.sh
   root@EC:~ #

Abhishek Shrivastava